CN114559887A - P-gear fault diagnosis method and device - Google Patents
P-gear fault diagnosis method and device Download PDFInfo
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- CN114559887A CN114559887A CN202210197183.5A CN202210197183A CN114559887A CN 114559887 A CN114559887 A CN 114559887A CN 202210197183 A CN202210197183 A CN 202210197183A CN 114559887 A CN114559887 A CN 114559887A
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- 238000003745 diagnosis Methods 0.000 title claims abstract description 30
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- 238000004590 computer program Methods 0.000 claims description 8
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/023—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for transmission of signals between vehicle parts or subsystems
- B60R16/0231—Circuits relating to the driving or the functioning of the vehicle
- B60R16/0232—Circuits relating to the driving or the functioning of the vehicle for measuring vehicle parameters and indicating critical, abnormal or dangerous conditions
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R16/00—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for
- B60R16/02—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements
- B60R16/03—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for
- B60R16/033—Electric or fluid circuits specially adapted for vehicles and not otherwise provided for; Arrangement of elements of electric or fluid circuits specially adapted for vehicles and not otherwise provided for electric constitutive elements for supply of electrical power to vehicle subsystems or for characterised by the use of electrical cells or batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/40—Engine management systems
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Abstract
The invention relates to the technical field of vehicle control, in particular to a P-gear fault diagnosis method and a device, wherein the method is applied to a P-gear fault diagnosis device of a vehicle, the device comprises an electronic gear shifter, a vehicle control unit and a P-gear controller which are sequentially connected, the P-gear fault diagnosis device comprises a counter, the counter is arranged in the P-gear controller, and the vehicle control unit is connected with a display device, and the method comprises the following steps: when a vehicle key is in a preset gear, if the electronic gear shifter receives a gear switching signal between the electronic gear shifter and a P gear controller monitors a voltage drop signal in the process of executing gear switching, judging whether the drop value of the voltage drop signal exceeds a threshold value, if so, generating a fault signal, and displaying prompt information through a display device of a vehicle controller to prompt a driver to start vehicle charging; the P-gear controller controls the counter to count once based on the fault signal and judges whether the counting of the counter reaches a preset number of times; if yes, the P-gear controller is controlled to enter a safety mode, and the safety of the system is improved.
Description
Technical Field
The invention relates to the technical field of vehicle control, in particular to a P-gear fault diagnosis method and device.
Background
The conventional controller generally only transmits and receives messages, and the load of the transmission and reception messages for the storage battery is relatively small, however, in the actual working process of the P-gear control system of the vehicle, an internal actuator needs to be driven to complete the action at the ms level, and therefore the power consumption is large. If under the slight feed condition of battery, need switch to P fender position, then can lead to battery voltage to descend sharply to lead to P to keep off control system and can't work, P keeps off actuating mechanism and stops work after, and the battery electric quantity can have the resilience, and P keeps off the controller again can continue to receive driver's order this moment, leads to unable definite fault point and can't start P and keep off protection mode, reciprocates, will lead to the battery electric quantity to exhaust, and the vehicle is automatic to be cut off the power supply, makes the vehicle unable use.
Therefore, how to diagnose the P-gear fault is a technical problem to be solved urgently at present.
Disclosure of Invention
In view of the above problems, the present invention has been made to provide a P range fault diagnosis method and apparatus that overcomes or at least partially solves the above problems.
In a first aspect, the present invention provides a P-range fault diagnosis method applied to a P-range fault diagnosis device of a vehicle, the device including: electronic selector, vehicle control unit and the P that connects gradually keep off the controller, still include: the counter, place P in the counter and keep off the controller, vehicle control unit connects display device, includes:
when a vehicle key is in a preset gear, if an electronic gear shifter receives a gear shifting signal between an electronic gear shifter and a P gear controller monitors a voltage drop signal in the process of executing gear shifting, the P gear controller judges whether the drop value of the voltage drop signal exceeds a threshold value, and the preset gear is a state that a vehicle is powered by a vehicle-mounted storage battery and an engine or a high-voltage battery is not started;
if yes, the fault signal generated by the P-gear controller displays prompt information on the display device through the vehicle controller so as to prompt a driver to start charging of the vehicle;
the P gear controller controls the counter to count once based on the fault signal and judges whether the counting of the counter reaches a preset number;
if yes, the P gear controller enters a safety mode.
Further, the P-range controller enters a safe mode, including:
and the P-gear controller stops responding to the command of the whole vehicle controller.
Further, after the P-range controller enters the safety mode, the method further includes:
the P-gear controller monitors a power supply voltage value;
and the P-gear controller controls the P-gear controller to exit a safety mode when monitoring that the power supply voltage value meets a normal power supply value and exceeds a preset time length.
Further, when the P-shift controller monitors that the power supply voltage value meets the normal power supply value and exceeds the preset duration, the P-shift controller exits the safety mode, and the method further includes:
the P gear controller monitors whether the P gear completes one unlocking or locking action;
and if so, controlling the counter to be cleared.
Further, the P-gear controller is connected with an actuator, the actuator is connected with a parking module, the parking module comprises a pawl, a ratchet wheel is arranged on an input shaft of the gearbox and corresponds to the pawl, and the locking action of the P-gear comprises the following steps:
when the electronic gear shifter receives a gear shifting signal for shifting to a P gear, the P gear controller controls an actuator to act, and the actuator drives a pawl in the parking module to be meshed with the ratchet wheel, so that the gearbox is locked, namely the P gear is locked to act.
Further, after the vehicle control unit controls an actuator to act through the P-gear controller based on a gear switching signal received by the electronic gear shifter and switching to the P-gear, and the actuator drives a pawl in the parking module to engage with the ratchet wheel, so as to lock the gearbox, that is, the lock of the P-gear is achieved, the method further includes:
when the electronic gear shifter receives a gear shifting signal for shifting from a P gear to other gears, the P gear controller controls the actuator to act, so that the actuator drives the pawl in the parking module to be separated from the ratchet wheel, and the parking mode is released.
In a second aspect, the present invention further provides a P-range fault diagnosis apparatus applied to a vehicle, the apparatus including: electronic selector, vehicle control unit and the P that connects gradually keep off the controller, still include, the counter, place P in the counter and keep off the controller, vehicle control unit connects display device, includes:
the electronic gear shifter is used for detecting whether a gear shifting signal between the electronic gear shifter and a P gear is received or not when a vehicle key is in a preset gear, wherein the preset gear is a state that a vehicle is powered by a vehicle-mounted storage battery and an engine or a high-voltage battery is not started;
the P gear controller is used for judging whether a reduction difference value of the voltage reduction signal exceeds a threshold value or not when the electronic gear shifter receives the gear switching signal and monitors the voltage reduction signal in the gear switching process; if so, generating a fault signal, and displaying prompt information on the display device through the vehicle controller so as to prompt a driver to start charging the vehicle; the fault detection circuit is also used for controlling the counter to count once based on the fault signal and judging whether the count of the counter reaches a preset number of times; if yes, controlling the P-gear controller to enter a safety mode.
Further, a voltage sensor is arranged in the P-gear controller, and when the power supply voltage value of the P-gear controller is monitored to meet a normal power supply value and exceed a preset time length, the P-gear controller is controlled to exit a safety mode.
In a third aspect, the invention also provides a vehicle comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method steps of the first aspect when executing the program.
In a fourth aspect, the invention also provides a computer-readable storage medium, on which a computer program is stored, characterized in that the program, when executed by a processor, performs the method steps as described in the first aspect.
One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:
the invention provides a P-gear fault diagnosis method, which is applied to a P-gear fault diagnosis device of a vehicle, wherein the device comprises an electronic gear shifter, a vehicle controller and a P-gear controller which are sequentially connected, and the P-gear fault diagnosis device also comprises: the counter, place P in the counter in keeping off the controller, this vehicle control unit connects display device includes: when a vehicle key is in a preset gear, if the electronic gear shifter receives a gear switching signal between the electronic gear shifter and a P gear controller monitors a voltage drop signal in the process of executing gear switching, the P gear controller judges whether the drop value of the voltage drop signal exceeds a threshold value or not, and the preset gear is a state that the vehicle is powered by a vehicle-mounted storage battery and an engine or a high-voltage battery is not started; if yes, a fault signal generated by the P-gear controller; the vehicle controller displays prompt information on the display device to prompt a driver to start charging of the vehicle; the P gear controller controls the counter to count once based on the fault signal and judges whether the counting of the counter reaches a preset number of times; if so, the P-gear controller enters a safety mode, and then the phenomenon that the vehicle cannot be used due to the fact that the storage battery is fed is avoided through a prompting mode and a counting mode, and the safety of the system is improved.
Drawings
Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:
fig. 1 is a schematic structural diagram showing a P-range fault diagnosis device of the vehicle in the embodiment of the invention;
FIG. 2 is a flow chart illustrating steps of a P-range fault diagnosis method according to an embodiment of the present invention;
fig. 3 shows a schematic structural diagram of a vehicle implementing the P-range fault diagnosis method in the embodiment of the invention.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
Example one
An embodiment of the present invention provides a P-range fault diagnosis method, as shown in fig. 1, which is applied to a P-range fault diagnosis apparatus of a vehicle, the apparatus including: the electron selector (EMS)101, Vehicle Control Unit (VCU)102 and the P that connect gradually keep off controller (PGU)103 still include: the counter 105 is built in the P-range controller 103, and the vehicle control unit 102 is connected to the display device 104. The vehicle can be a traditional automobile or a new energy vehicle.
As shown in fig. 2, the method includes:
s201, when a vehicle key is in a preset gear, if the electronic gear shifter 101 receives a gear shifting signal between the electronic gear shifter and a P gear and the P gear controller 103 monitors a voltage drop signal in the process of executing gear shifting, the P gear controller 103 judges whether the drop value of the voltage drop signal exceeds a threshold value, and the preset gear is a state that the vehicle is powered by a vehicle-mounted storage battery and an engine or a high-voltage battery is not started;
s202, if yes, displaying a prompt message on a display device through the vehicle controller 102 according to a fault signal generated by the P-gear controller so as to prompt a driver to start charging of the vehicle;
s203, the P gear controller controls the counter 105 to count once based on the fault signal, and judges whether the counter 105 reaches a preset number of times;
and S204, if yes, the P-gear controller 103 enters a safety mode.
In S201, when the vehicle key is in a preset gear, if the electronic shifter 101 receives a gear switching signal between the electronic shifter and the P-gear, and the P-gear controller 103 monitors a voltage drop signal during the gear switching, the P-gear controller 103 determines whether a drop value of the voltage drop signal exceeds a threshold, and the preset gear is in a state where the vehicle-mounted battery supplies power and is not started.
When the vehicle is a new energy vehicle, the preset state is that basically all systems of the vehicle are normally powered, the gear can be shifted normally, but the high voltage is not started (namely the DCDC cannot supply power to the vehicle through the power battery), and the vehicle is powered through the 12V vehicle-mounted battery.
When the vehicle is a traditional vehicle, basically all systems of the vehicle are normally powered and can be normally shifted, but the engine is not started (namely the engine cannot charge the 12V storage battery), and the vehicle is powered by the 12V vehicle-mounted storage battery.
For example, when a vehicle is in an on gear, which is a stage of preparing for starting the vehicle, for example, some vehicles forget to close windows after stopping, but the vehicle is already in a flameout state, and at this time, the key is turned to the on gear, and the vehicle is in a power-on state, which can close the windows.
The electronic shifter 101 is configured to receive a shift position switching signal triggered by a driver, and includes any one of R, N, D shift positions to P-shift position or any one of P-shift position to R, N, D shift position.
Since the P range controller 103 monitors the voltage drop signal during the shift switching, the P range controller 103 determines whether the drop value of the voltage drop signal exceeds a threshold value.
For example, the voltage drops from the original 12V to 7V, and the threshold is 3V, and it is clear that the drop is 5V and exceeds 3V.
Next, when the P-range controller 103 determines that the drop value of the voltage drop signal exceeds the threshold value, S202 is executed, and the P-range controller 103 generates a fault signal and displays a prompt message on the display device 104 through the vehicle controller 102 to prompt the driver to start charging the vehicle.
Since the P-range controller 103 can determine that the voltage drop exceeds the threshold, it is determined that the current requirement, i.e., the load requirement of the P-range controller 103, cannot be met by the control of the P-range controller 103.
In a particular embodiment, the display device 104 is embodied as a meter or the like.
By prompting the driver to start the vehicle charging, the vehicle enters a start mode, the storage battery is charged in time, and a series of other problems caused by serious feeding of the vehicle are avoided.
If the driver can find the condition of the storage battery feed in time and charge in time, other problems caused by serious feed of the vehicle can be avoided as early as possible. However, if the driver does not find the battery feed in time, another layer of safeguards is activated.
Specifically, the vehicle further includes a counter 105, which is built in the P range controller 103, and after S202, that is, after the P range controller 103 generates the fault signal, S203 is executed:
the P-gear controller 103 controls the counter 105 to count once based on the fault signal, and determines whether the count of the counter 105 reaches a preset number; if S204, the P-gear controller 103 enters a safe mode.
When the storage battery is in a feeding condition, the voltage value is 12V, however, when the storage battery needs to be switched to the P-range, because the load of the P-range is large, the voltage value drops sharply, and the P-range controller 103 cannot work, after the P-range controller 103 stops working, the storage battery voltage returns to normal again, because the storage battery voltage decreases only briefly, the P-range controller 103 and other controllers also cannot enter the safety mode, and therefore, the shift instruction of the driver is continuously received, and therefore, the vehicle controller 102 receives the fault signal fed back by the P-range controller 103 for many times, and when the P-range controller 103 receives the fault signal for every time, the P-range controller 103 controls the counter 105 to count once, and determines whether the count of the counter 105 reaches the preset number of times.
For example, 5 times is a preset number, and when the number exceeds 5 times, the P range controller 103 enters the safety mode.
Specifically, the P-range controller 103 stops responding to the command of the vehicle controller 102, and monitors the power supply voltage value for monitoring the power supply condition of the vehicle after entering the safety mode; and when the power supply voltage value is monitored to meet the normal power supply value and exceed the preset time length, controlling the P-gear controller 103 to exit the safety mode.
That is, when the P-range controller 103 monitors that the power supply voltage value is recovered to the normal power supply value, for example, when the P-range controller 103 monitors that the power supply voltage value is greater than 12V and exceeds a preset time period, the P-range controller 103 is controlled to exit the safety mode, so that the P-range controller 103 can continue to receive the instruction.
When the voltage is recovered to a normal voltage value, the P-gear controller 103 monitors whether the P-gear completes one unlocking or locking action; if so, the counter 105 is controlled to be cleared.
In a specific embodiment, the P-range controller 103 is connected with an actuator, the actuator is connected with a parking module, the parking module comprises a pawl, and a ratchet wheel is arranged on the input shaft of the gearbox and corresponds to the pawl.
Before the counter 105 is controlled to be cleared, that is, the P range lock-up operation includes: when the electronic gear shifter 101 receives a gear shifting signal for shifting to the P gear, the P gear controller 103 controls the actuator to act, the actuator drives the pawl in the parking module to be meshed with the ratchet wheel, the gear of the gearbox is locked, and then parking is achieved, namely the locking action of the P gear is achieved.
When the power supply voltage is normal, the normal parking control of the P range controller 103 can be realized.
After the action of locking the gearbox, namely locking the P gear, the method further comprises the following steps: receiving a gear switching signal for switching from the P gear to another gear at the electronic gear shifter 101, specifically, switching to the R gear, the N gear or the D gear; if yes, the P-gear controller 103 controls the actuator to act, so that the actuator drives the pawl in the parking module to be disengaged from the ratchet wheel and released, the parking mode is released, and the gear is switched.
One or more technical solutions in the embodiments of the present invention have at least the following technical effects or advantages:
the invention provides a P-gear fault diagnosis method, which is applied to a P-gear fault diagnosis device of a vehicle, wherein the device comprises an electronic gear shifter, a vehicle controller and a P-gear controller which are sequentially connected, and the P-gear fault diagnosis device also comprises: the counter, place P in the counter in keeping off the controller, this vehicle control unit connects display device includes: when a vehicle key is in a preset gear, if the electronic gear shifter receives a gear shifting signal between the electronic gear shifter and a P gear and the P gear controller monitors a voltage drop signal in the process of executing gear shifting, the P gear controller judges whether the drop value of the voltage drop signal exceeds a threshold value or not, and the preset gear is a state that the vehicle is powered by a vehicle-mounted storage battery and an engine or a high-voltage battery is not started; if yes, a fault signal generated by the P-gear controller; the vehicle controller displays prompt information on the display device to prompt a driver to start charging of the vehicle; the P gear controller controls the counter to count once based on the fault signal and judges whether the counting of the counter reaches a preset number of times; if so, the P-gear controller enters a safety mode, and then the phenomenon that the vehicle cannot be used due to the fact that the storage battery is fed is avoided through a prompting mode and a counting mode, and the safety of the system is improved.
Example two
Based on the same inventive concept, the embodiment of the invention also provides a P-gear fault diagnosis device, which is applied to the P-gear fault diagnosis device of a vehicle, and comprises: electronic selector 101, vehicle control unit 102 and the P that connect gradually keep off controller 103 still include: the counter 105 is embedded in the P-gear controller 103, and the vehicle control unit 103 is connected to the display device 104, as shown in fig. 1, and includes:
the electronic gear shifter 101 is used for detecting whether a gear shifting signal between the electronic gear shifter and a P gear is received or not when a vehicle key is in a preset gear, and the preset gear is used for enabling the vehicle to be in a state that a vehicle-mounted storage battery supplies power and an engine or a high-voltage battery is not started;
the P-gear controller 102 is configured to determine whether a drop difference of the voltage drop signal exceeds a threshold value when the electronic shifter receives the gear shift signal and monitors the voltage drop signal during gear shift; if yes, generating a fault signal, and displaying prompt information on the display device 104 through the vehicle control unit 103 to prompt a driver to start vehicle charging; the fault detection circuit is also used for controlling the counter to count once based on the fault signal and judging whether the count of the counter reaches a preset number of times; if yes, controlling the P-gear controller to enter a safety mode.
In an optional embodiment, the P-range controller 103 enters a safety model, specifically: the P-range controller 103 stops responding to the command of the vehicle control unit 102.
In an alternative embodiment, the P range controller 103 is further configured to: monitoring the power supply voltage value; when the power supply voltage value is monitored to meet the normal power supply value and exceed the preset time length, the P-gear controller 103 exits the safety mode.
In an alternative embodiment, the P range controller 103 is further configured to: monitoring whether the P gear completes one unlocking or locking action; if yes, the counter 105 is controlled to be cleared.
In an alternative embodiment, the P-gear controller 103 is connected with an actuator, the actuator is connected with a parking module, the parking module comprises a pawl, a ratchet wheel is arranged on the input shaft of the gearbox and corresponds to the pawl, and the locking action of the P-gear comprises that when the electronic gear shifter receives a gear shifting signal for shifting to the P-gear, the P-gear controller controls the actuator to act, and the actuator drives the pawl in the parking module to be meshed with the ratchet wheel, so that the gearbox is locked, namely the locking action of the P-gear is realized.
In an alternative embodiment, after the locking action of the P gear, when the electronic gear shifter receives a gear shifting signal for shifting from the P gear to other gears, the P gear controller controls the action of an actuator, so that the actuator drives a pawl in the parking module to be out of contact with the ratchet wheel, and the parking mode is released.
EXAMPLE III
Based on the same inventive concept, the embodiment of the present invention provides a vehicle, as shown in fig. 3, including a memory 304, a processor 302, and a computer program stored on the memory 304 and operable on the processor 302, wherein the processor 302 implements the steps of the above P-range fault diagnosis method when executing the program.
Where in fig. 3 a bus architecture (represented by bus 300), bus 300 may include any number of interconnected buses and bridges, bus 300 linking together various circuits including one or more processors, represented by processor 302, and memory, represented by memory 304. The bus 300 may also link together various other circuits such as peripherals, voltage regulators, power management circuits, and the like, which are well known in the art, and therefore, will not be described any further herein. A bus interface 306 provides an interface between the bus 300 and the receiver 301 and transmitter 303. The receiver 301 and the transmitter 303 may be the same element, i.e., a transceiver, providing a means for communicating with various other apparatus over a transmission medium. The processor 302 is responsible for managing the bus 300 and general processing, and the memory 304 may be used for storing data used by the processor 302 in performing operations.
Example four
Based on the same inventive concept, an embodiment of the present invention provides a computer-readable storage medium, on which a computer program is stored, which, when being executed by a processor, implements the steps of the above-mentioned P-range fault diagnosis method.
The algorithms and displays presented herein are not inherently related to any particular computer, virtual machine, or other apparatus. Various general purpose systems may also be used with the teachings herein. The required structure for constructing such a system will be apparent from the description above. Moreover, the present invention is not directed to any particular programming language. It is appreciated that a variety of programming languages may be used to implement the teachings of the present invention as described herein, and any descriptions of specific languages are provided above to disclose the best mode of the invention.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be construed to reflect the intent: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the modules in the devices in an embodiment may be adaptively changed and arranged in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Moreover, those of skill in the art will appreciate that while some embodiments herein include some features included in other embodiments, not others, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
The various component embodiments of the invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art will appreciate that a microprocessor or Digital Signal Processor (DSP) may be used in practice to implement some or all of the functions of some or all of the components in a P-range fault diagnosis apparatus, a vehicle, or a P-range fault diagnosis apparatus according to an embodiment of the present invention. The present invention may also be embodied as apparatus or device programs (e.g., computer programs and computer program products) for performing a portion or all of the methods described herein. Such programs implementing the present invention may be stored on computer-readable media or may be in the form of one or more signals. Such a signal may be downloaded from an internet website or provided on a carrier signal or in any other form.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
Claims (10)
1. A P-gear fault diagnosis method is applied to a P-gear fault diagnosis device of a vehicle, and the device comprises the following steps: electronic selector, vehicle control unit and the P that connects gradually keep off the controller, still include: the counter, place P in the counter and keep off the controller, vehicle control unit connects display device, its characterized in that includes:
when a vehicle key is in a preset gear, if an electronic gear shifter receives a gear shifting signal between an electronic gear shifter and a P gear controller monitors a voltage drop signal in the process of executing gear shifting, the P gear controller judges whether the drop value of the voltage drop signal exceeds a threshold value, and the preset gear is a state that a vehicle is powered by a vehicle-mounted storage battery and an engine or a high-voltage battery is not started;
if so, the P-gear controller generates a fault signal and displays prompt information on the display device through the vehicle controller so as to prompt a driver to start charging of the vehicle;
the P gear controller controls the counter to count once based on the fault signal and judges whether the counting of the counter reaches a preset number of times;
and if so, the P gear controller enters a safety mode.
2. The method of claim 1, wherein the P-range controller enters a safe mode comprising:
and the P-gear controller stops responding to the command of the whole vehicle controller.
3. The method of claim 1, wherein after the P-range controller enters the safe mode, further comprising:
the P-gear controller monitors a power supply voltage value;
and when the P-gear controller monitors that the power supply voltage value meets a normal power supply value and exceeds a preset time length, the P-gear controller exits a safety mode.
4. The method of claim 3, wherein the P-range controller, after exiting the safety mode when the P-range controller monitors that the power supply voltage value meets a normal power supply value and exceeds a preset time duration, further comprises:
the P gear controller monitors whether the P gear completes one unlocking or locking action;
and if so, controlling the counter to be cleared.
5. The method of claim 4, wherein the P-range controller is connected with an actuator, the actuator is connected with a parking module, the parking module comprises a pawl, a ratchet wheel is arranged on an input shaft of the gearbox and corresponds to the pawl, and the locking action of the P-range comprises the following steps:
when the electronic gear shifter receives a gear shifting signal for shifting to a P gear, the P gear controller controls an actuator to act, and the actuator drives a pawl in the parking module to be meshed with the ratchet wheel, so that the gearbox is locked, namely the P gear is locked to act.
6. The method as claimed in claim 5, wherein when the electronic gear shifter receives a gear shifting signal for shifting to the P gear, the P gear controller controls an actuator to act, the actuator drives a pawl in the parking module to engage with the ratchet wheel, and the gear box locking, namely the P gear locking action, is achieved, and the method further comprises the following steps:
when the electronic gear shifter receives a gear shifting signal for shifting from a P gear to other gears, the P gear controller controls the actuator to act, so that the actuator drives the pawl in the parking module to be separated from the ratchet wheel, and the parking mode is released.
7. A P-gear fault diagnosis device is applied to a vehicle and comprises: electronic selector, vehicle control unit and the P that connects gradually keep off the controller, still include: the counter, place P in the counter in keeping off the controller, vehicle control unit connects display device, its characterized in that includes:
the electronic gear shifter is used for detecting whether a gear shifting signal between the electronic gear shifter and a P gear is received or not when a vehicle key is in a preset gear, wherein the preset gear is a state that a vehicle is powered by a vehicle-mounted storage battery and an engine or a high-voltage battery is not started;
the P-gear controller is used for judging whether a reduction difference value of a voltage reduction signal exceeds a threshold value or not when the electronic gear shifter receives the gear shifting signal and monitors the voltage reduction signal in the process of executing gear shifting; if yes, generating a fault signal, and displaying prompt information on the display device through the vehicle controller to prompt a driver to start charging the vehicle; the fault detection circuit is also used for controlling the counter to count once based on the fault signal and judging whether the count of the counter reaches a preset number of times; and if so, controlling the P-gear controller to enter a safety mode.
8. The device of claim 7, wherein a voltage sensor is built in the P-range controller, and when the P-range controller is monitored to have a power supply voltage value meeting a normal power supply value and exceeding a preset time, the P-range controller exits from a safety mode.
9. A vehicle comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the processor, when executing the program, carries out the method steps of any one of claims 1-6.
10. A computer-readable storage medium, on which a computer program is stored which, when being executed by a processor, carries out the method steps of any one of claims 1 to 6.
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0891121A (en) * | 1994-09-27 | 1996-04-09 | Mazda Motor Corp | Trouble diagnosing display device of vehicle |
| JP2010230072A (en) * | 2009-03-26 | 2010-10-14 | Toyota Motor Corp | Vehicle shift control device |
| WO2011101973A1 (en) * | 2010-02-18 | 2011-08-25 | トヨタ自動車株式会社 | Vehicle shift control device |
| JP2013104463A (en) * | 2011-11-11 | 2013-05-30 | Toyota Motor Corp | Vehicle control device |
| CN104943666A (en) * | 2014-03-31 | 2015-09-30 | 比亚迪股份有限公司 | Automatic parking control system for vehicle and control method thereof and vehicle |
| US20180066755A1 (en) * | 2016-09-06 | 2018-03-08 | Mazda Motor Corporation | Control device of automatic transmission which executes shift-by-wire control |
| CN108105376A (en) * | 2016-11-25 | 2018-06-01 | 丰田自动车株式会社 | Control device for vehicle and the control method for vehicle |
| CN109237012A (en) * | 2018-09-29 | 2019-01-18 | 宁波高发汽车控制系统股份有限公司 | A kind of automobile automatic shifting device control system |
| WO2020166210A1 (en) * | 2019-02-15 | 2020-08-20 | パナソニックＩｐマネジメント株式会社 | Backup power supply system for shift-by-wire, and control program |
| CN212172191U (en) * | 2020-05-08 | 2020-12-18 | 北京现代汽车有限公司 | Mobile power supply for electronic parking brake |
| CN113759878A (en) * | 2021-09-26 | 2021-12-07 | 重庆美沣秦安汽车驱动系统有限公司 | Control system, method and terminal for combined action of P-gear actuator and motor |
-
2022
- 2022-03-01 CN CN202210197183.5A patent/CN114559887B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0891121A (en) * | 1994-09-27 | 1996-04-09 | Mazda Motor Corp | Trouble diagnosing display device of vehicle |
| JP2010230072A (en) * | 2009-03-26 | 2010-10-14 | Toyota Motor Corp | Vehicle shift control device |
| WO2011101973A1 (en) * | 2010-02-18 | 2011-08-25 | トヨタ自動車株式会社 | Vehicle shift control device |
| JP2013104463A (en) * | 2011-11-11 | 2013-05-30 | Toyota Motor Corp | Vehicle control device |
| CN104943666A (en) * | 2014-03-31 | 2015-09-30 | 比亚迪股份有限公司 | Automatic parking control system for vehicle and control method thereof and vehicle |
| US20180066755A1 (en) * | 2016-09-06 | 2018-03-08 | Mazda Motor Corporation | Control device of automatic transmission which executes shift-by-wire control |
| CN108105376A (en) * | 2016-11-25 | 2018-06-01 | 丰田自动车株式会社 | Control device for vehicle and the control method for vehicle |
| CN109237012A (en) * | 2018-09-29 | 2019-01-18 | 宁波高发汽车控制系统股份有限公司 | A kind of automobile automatic shifting device control system |
| WO2020166210A1 (en) * | 2019-02-15 | 2020-08-20 | パナソニックＩｐマネジメント株式会社 | Backup power supply system for shift-by-wire, and control program |
| CN212172191U (en) * | 2020-05-08 | 2020-12-18 | 北京现代汽车有限公司 | Mobile power supply for electronic parking brake |
| CN113759878A (en) * | 2021-09-26 | 2021-12-07 | 重庆美沣秦安汽车驱动系统有限公司 | Control system, method and terminal for combined action of P-gear actuator and motor |
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|---|---|
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